Utility of Intraoperative Frozen Sections during Thyroid Surgery

Table 1

Fine needle aspiration biopsy diagnostic categories, adapted from Cibas and Ali (The Bethesda System for Thyroid Cytopathology) [6].

Diagnostic category	Risk of malignancy (%)
Nondiagnostic or unsatisfactory	1–4
Benign	0–3
Atypia or follicular lesion of undetermined significance	5–15
Follicular neoplasm or suspicious for follicular neoplasm	15–30
Suspicious for malignancy	60–75
Malignant	97–99